| A | B |
|---|
| cell | the basic unit of life |
| colonial | unicellular, but living with other unicellular organisms |
| theory | a broad and comprehensive statement of what is thought to be true |
| inheritance | the receiving of genetic traits from a parent |
| evolve | change over time |
| ecology | the study of the interactions of organisms with one another and with their environment |
| autotroph | organism that can make its own food |
| heterotroph | organism that cannot make its own food |
| biology | the study of life |
| control group | the group that serves as the comparison in an experiment |
| dependent variable | the variable in an experiment that is observed |
| hypothesis | a scientific explanation that is testable |
| independent variable | the variable in an experiment that is deliberately changed |
| experimental group | the group that is being tested in an experiment; the group that shows the effect of the variable being tested |
| Bio | a Greek term that means life |
| homeostasis | the internal balance that a cell must maintain to function efficiently |
| evolution | The process of change by which new species develop from preexisting species over time |
| adaptation | A change in DNA that enables survival in a changing environment |
| reproduction | The process of producing offspring |
| observation | Using one or more of the five senses to gather information |
| data | Information gathered from making observations |
| unicellular | an organism that consists of only one cell |
| multicellular | a tissue, organ, or organism that is made up of many cells |
| homeostasis | the maintenance of a constant internal state in a changing environment |
| biogenesis | The principle that all living things come from pre-existing living things. |
| spontaneous generation | The idea that living things could arise from nonliving things |
